Environment Variables in the Config File

You can pull configuration values from environment variables like this:

config.yaml
logLevel: ${{ LOG_LEVEL }}

pageTitle: Olivetin - ${{ DEPLOY_ENV }}

actions:
    ...

While loading the config file, Olivetin will substitute the value of the named environment variable for the token. If the variable is unset, Olivetin will use an empty string as the value and log a warning. This syntax works even for configuration values that aren’t strings, as long as the final string value can be converted to the proper type.

Notes

  1. These variables are read while loading the config file. Changes in the environment won’t be reflected until the config file is reloaded. If you want to read environment variables at execution time in your action’s shell line, make sure to use regular shell syntax, i.e., $FOO rather than ${{ FOO }}. See environment variables for info on using environment variables in your actions.